The study of biophysical aspects of photobiological processes is the central section of quantum biophysics.

To carry photobiological processes, starting with the light absorption of a quantum of biologically important molecules and ending with a physiological response (positive or negative) at the level of the organism.

Photobiological processes are very diverse.

Each of them consists of many stages, starting with an act of absorption of a light quantum and ending physiological-cal reactions at the level of the whole organism.